De-select column for comparison, but still include it in INSERT

I have a situation where I might like to exclude a column from the comparison, but still want it included in a resulting INSERT statement that is ultimately deployed. The column itself is meaningless for what I'm doing and I don't want updates to it triggering downstream processes, but when I exclude it from the compare, it is skipped in the resulting insert statement generated for new records. Since the column is defined as NOT NULL, I'll need to assign a default or make it nullable on the target.

I'm not entirely certain I want to go this route, but I was surprised when the column was excluded from the insert statement when I disabled it from comparison.  I don't want a change to ONLY this column to trigger an update statement, but it still needs to be there on insert.